/Engine/Source/Runtime/GeometryCore/Public/Util/SmallListSet.h
a value enumerable for the given ListIndex, with the given value mapping function
[MappedValueEnumerable](API\Runtime\GeometryCore\Util\FSmallListSet\MappedValueEnumerable) MappedValues ( int32 ListIndex, [TFunction](API\Runtime\Core\GenericPlatform\TFunction)< int32(int32)> MapFunc ) const